1. Questions

Math Test: Probability

Okay so I have looked a lot of places for some help on my math test. I am going to put down the first 3 questions and answer choices on my test. If you have the same test as I do then could you give me some answers ASAP? Remember, all test aren't the same and I'm a Connection Academy Student for the 7th grade. I at probability and if I fail... well.... the results will be devastating to my grade and to me. HELP!!!!!!!!!!!!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Question 1
_______________________________________________________________________
Jerry mixes the letters F,P,M,M,M,F,P and J thorough. Without looking Amanda draws one letter. Expressed as a fraction, decimal and percentage. What is the probability that J will NOT be the letter Amanda selects?

A.7/8, 0.875, 87.5%

B.5/8, 0.625, 62.5%

C.1/8 , 0.125, 12.5%

D.8/7, 1.14, 11.4%
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Question 2
_______________________________________________________________________
Christopher mixes the letters S, E, L, E, C, T, E, and D thoroughly. Without looking, Allen draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that Allen will not select a consonant?

A. 3/8 , 0.375, 37.5%
B. 3/5 , 0.6, 60%
C. 5/8 , 0.625, 62.5%
D. 1/2 , 0.5, 50%
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Question 3
_______________________________________________________________________Suppose you have a drawer full of white, black and yellow pairs of socks. If the probability of picking a white pair of socks is 4/9, and the probability of picking a black pair of socks is 7/18, what is the probability of picking a yellow pair of socks?

A. 1/6
B. 5/12
C. 7/15
D.16/27

  1. 👍
  2. 👎
  3. 👁
CamDiva

  1. You should probably start from the basics here: https://www.khanacademy.org/math/statistics-probability

    If you've reached the test for the course and you have no idea about these questions, you need to start over. (Sad to say, but I'd be in your shoes. I would have to start over!)

    1. 👍
    2. 👎
    👤
    Writeacher

  2. 1. Since J is one of the 8 letters , it is 1/8 of the total letters. Therefore, there's a 7/8 probability that you'll not draw a J.

    2. How many of these 8 letters are not vowels?

    3. 8/18 + 7/18 = 15/18 are not yellow

    I'll be glad to check your answers.

    1. 👍
    2. 👎
    👤
    Ms. Sue

  4. My goodness, I would expect my students to be able to answer these after the introductory lesson to probability .

    The only one that could pose a problem is the third.

    There are 3 events, the sum of the probabilities must be 1
    prob(white) + prob(black) + prob(yellow) = 1
    4/9 + 7/18 + x = 1

    solve for x

    for the 1st , find the prob(picking a J),
    then prob(NOT picking a J) = 1 - answer = ...

    2nd, the same thing.

    1. 👍
    2. 👎
    Reiny

  5. Thanks Ms. Sue!!! YOU. ARE. A. LIFESAVER!!!!!!!!!!!!!!!!!!!

    1. 👍
    2. 👎
    CamDiva

Respond to this Question

First Name

Your Response

Similar Questions

  1. English

    Choose the sentence that is written in active voice. A. The math problems were given to the students. B. The students were taking a math test. C. The math test was given by the instructor. D. The math test grades were given to the

  2. Grade 7 Semester A Test - Part 1 Math

    I Need The answers to the Grade 7 Semester A Test - Part 1 math test

  3. Fractions to Mixed Numbers

    Dillon studied 3 6/7 hours for his English test. He studied 5 3/14 hours for his math test. How much longer did he study for his math test? (Simplify the answer and write it as a mixed number.)

  4. Business English

    Choose the sentence that is written in active voice. a) The math problems were given to the students. b) The students were taking a math test. c) The math test was given by the instructor. d) The math test grades were given to the

  1. Algebra

    "What might you have if you don't feel well?" That's a math riddle actually... The letters are E,G,O,S,O,N,V,L. It has A LOT to do with math actually!

  2. Algebra

    Your math test scores are 68 78 90 and 91 what is the lowest score you can iron on the next test and still achieve an average of at least 85

  3. math

    Carlos just took a 40 question math test. He scored a 75%. How many questions did he get correct on his test? Show your work!

  4. Satistics

    The human resources department of a consulting firm gives a standard creativity test to a randomly selected group of new hires every year. This year, 80 new hires took the test and scored a mean of 112.5 points with a standard

  1. Math, Science, Writing, Language, Test Preparation

    I was wondering can I receive website to help me prepare for vocabulary, geometry, chemistry, PSAT, SAT, and ACT Thanks Study skills are number one, as far as I can see. Subject areas are included in these sites, too:

  2. math

    if m

  3. Statistics

    Please help, I do not understand how to do this: Let x be a random variable that represents white blood cell count per cubic milliliter of whole blood. Assume that x has a distribution that is approximately normal, with mean μ =

  4. Math check

    Find the critical value for the hypothesis test, given the following. (Give your answer correct to two decimal places.) Ha: ó1 > ó2, with n1 = 8, n2 = 10, and á = 0.025 F = 2.24 I did it this way and it comes up wrong

You can view more similar questions or ask a new question.